Unless you're baking breads or pastries, you may not even need to preheat

Don't open the oven door too often to check food condition as each opening leadsto a temperature drop of 25°C

Electric stove

Turn off electric stoves several minutes before the specified cooking time

Use flat-bottomed pans that make full contact with the cooking coil

Use Solar Water Heater

A good replacement for a electric water heater

Electronic Devices

Do not switch on the power when TV and Audio Systems are not in use i.e. idle operationleads to an energy loss of 10 watts/device

Computers

Turn off your home office equipment when not in use. A computer that runs 24 hoursa day, for instance, uses - more power than an energy-efficient refrigerator.

If your computer must be left on, turn off the monitor; this device alone uses morethan half the system's energy.

Setting computers, monitors, and copiers to use sleep-mode when not in use helpscut energy costs by approximately 40%.

Battery chargers, such as those for laptops, cell phones and digital cameras, drawpower whenever they are plugged in and are very inefficient. Pull the plug and save.

Screen savers save computer screens, not energy. Start-ups and shutdowns do notuse any extra energy, nor are they hard on your computer components. In fact, shuttingcomputers down when you are finished using them actually reduces system wear - andsaves energy